• glReadPixels
    Note: This was originally posted on 9th March 2012 at http://forums.arm.com Hi all, i try to render scene in an off screen  way, controlling the location of my pixels (the pointer is fixed by myself)...
  • glReadPixels generates OUT_OF_MEMORY error
    Hi. Usually, I use render-to-texture technique to process the image. However, recently, I need to read the contents to the system memory. So, I tried to use glReadPixels as follows: GLubyte pixels[256...
  • Tips & Tricks: Viewing Transforms
    Note: This was originally posted on 27th October 2009 at http://forums.arm.com How OpenGL ES handles matrices... When you multiply the position vector with several matrices to achieve transformations...
  • find alternatives for glReadPixels
    I am working on mali400-mp2， and I tried to create a pixmap suface based on a fbdev_pixmap. when I finished rendering, I can get the correct result with glReadPixels, but the data field of fbdev pixmap...
  • Mali-400 MP2 glReadPixels alternatives
    Hello everyone, I'm working on ZynqMP platform with Mali-400 MP2. I configured headless-EGL backend to render offscreen. I'm using eglCreatePbufferSurface to initialize egl surface, then I render to...